Display device



FIG. 1 is a front view of a display device, showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right-side view thereof; and,

FIG. 7 is a perspective view thereof.

The broken line showing of elements on the display device illustrate portions of the article and forms no part of the claimed design. 

CLAIM The ornamental design for a display device, as shown and described. 